Southwire Electrical Box for Lighting Fixture, 50lb Ceiling Fan and 75lb Light Fixture Support, 22.5Cu with Depth Adjustment, 1 Gang, Gray, MSB22+;

Molded entirely of 1 piece with no moving parts to break or lose. Step down feature allows for wire entrance in both top and bottom of box. Mounts to wood or metal stud 25g. Extra thick PVC wall material creates stability and rigidity. Built-in wire clamps. All 6/32 device holes are threaded.